Metadata correction for 2025.finnlp-1.30

[Paul-scpark]

JSON data block

{
  "anthology_id": "2025.finnlp-1.30",
  "authors": [
    {
      "first": "Seongchan",
      "last": "Park",
      "id": "seongchan-park"
    },
  ]
}

[nschneid]

@Paul-scpark This didn't work but I assume you were trying to swap your first and last names to match the PDF. I did this in #4570